Demo

Full Stack Developer

T-Rex Solutions
Washington, DC Full Time
POSTED ON 9/20/2026
AVAILABLE BEFORE 10/19/2026

T-Rex Solutions is looking to select a Full Stack Developer to support our Internal Revenue Service (IRS) EDOS program. The overall mission of this program is to modernize the IRS legacy Tax processing systems and is critical to the overall modernization of the IRS to improve taxpayer experience, increase voluntary compliance, and reduce the IRS's reliance on costly and unsustainable legacy technology. This role will focus on building high-performing, scalable, enterprise-grade applications using modern Java and React technologies. The ideal candidate will have extensive experience in the full software development lifecycle, from concept and design to testing and deployment. As part of a talented software team, you'll work on mission-critical applications and contribute to a fast-paced, collaborative, and agile environment.

Requirements:

  • Bachelor's Degree in process and 2 years of overall experience
  • US Citizenship required
  • Must possess an active IRS MBI Clearance and have current GFE
  • Java Back-End: Strong proficiency in Java, including a solid understanding of Java design patterns.
  • Spring Framework: Extensive experience with the Spring ecosystem, including Spring Boot, Spring MVC, and Spring Data JPA.
  • React Front-End: Strong programming knowledge of JavaScript, TypeScript, and ReactJS.
  • Web Fundamentals: Experience translating graphic designs into responsive user interfaces using HTML and CSS.
  • API development: Experience building APIs that enable communication between the front and back ends (knowledge in documentation with Swagger is a plus)
  • Server-Side and Cloud: Experience server-side technologies (Java, Node.js, Python, etc.)  and cloud services (AWS) and containerization (Docker, Kubernetes, EKS, OpenShift)
  • DevOps: Well-versed in managing application development with DevOps tools like Jenkins, SonarQube, AppScan, Nexus IQ, GitHub, and GitHub Actions.
  • Agile: Experience working on an Agile team and a strong understanding of agile methodologies.
  • Excellent oral and written communication skills with client stakeholders at all organizational and technical levels

T-Rex Overview

Established in 1999, T-Rex Solutions, LLC is a proven mid-tier business providing data-centric mission services to the Federal government as it increasingly tries to secure and leverage the power of data. We design, integrate, secure, and deploy advanced technical solutions for our customers so they can efficiently fulfill their critical objectives. T-Rex offers both IT and professional services to numerous Federal agencies and is a leader in providing high quality and innovative solutions in the areas of Cloud and Infrastructure Services, Cyber Security, and Big Data Engineering.

T-Rex is constantly seeking qualified people to join our growing team. We have built a broad client base through our devotion to delivering quality products and customer service, and to do that we need quality individuals. But more than that, we at T-Rex are committed to creating a culture that supports the development of every employee's personal and professional lives. T-Rex has made a commitment to maintain the status of an industry leader in compensation packages and benefits which includes competitive salaries, performance bonuses, training and educational reimbursement, Transamerica 401(k) and Cigna healthcare benefits.

T-Rex is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex (including pregnancy and sexual orientation), parental status, national origin, age, disability, family medical history or genetic information, political affiliation, military service, or other non-merit based factors.

In compliance with pay transparency guidelines, the annual base salary range for this position is $65,000 - $87,000. Please note that the salary information is a general guideline only. T-Rex considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/training, key skills, internal peer equity, as well as market and business considerations when extending an offer.

T-Rex offers a diverse and collaborative work environment, exciting opportunities for professional growth, and generous benefits, including: PTO available to use immediately upon joining (prorated based on start date), paid parental leave, individual and family health, vision, and dental benefits, annual budget for training, professional development and tuition reimbursement, and a 401(k) plan with company match fully vested after 60 days of employment among other benefits.  

Salary : $65,000 - $87,000

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